/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/SmoothBoneWeights.h
Interface for getting the bone weights data. Should be subclassed and implemented if the bone weights data is not stored using the FDynamicMeshVertexSkinWeightsAttribute.
template<typename BoneIndexType, typename BoneWeightType> class TBoneWeightsDataSource